函数f(x)=lg(sin2x+根号3cos2x-1)定义域
问题描述:
函数f(x)=lg(sin2x+根号3cos2x-1)定义域
2sin(2x+π/3)-1>0化到这一步了
然后嘞?解释清楚点哈 本人数学菜鸟
答
2sin(2x+π/3)-1>0
sin(2x+π/3)>1/2
2kπ+π/62kπ+π/61/22kπ+π/6